Radiant energy – Photocells; circuits and apparatus – With circuit for evaluating a web – strand – strip – or sheet
Reexamination Certificate
2006-01-24
2006-01-24
Pyo, Kevin (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
With circuit for evaluating a web, strand, strip, or sheet
C250S559460, C250S559420, C356S430000, C356S237200
Reexamination Certificate
active
06989548
ABSTRACT:
An inspection device for metal rings of a Continuously Variable Transmission (CVT) V-belt which does not perform excessive detection of gloss marks as a detrimental manufacturing flaw configured with a first low-pass cutting portion for cutting out a predetermined low-frequency component contained in an electrical signal outputted from a first light detector or an electrical signal correlated to its electrical signal and a second low-pass cutting portion for cutting out a predetermined low-frequency component contained in an electrical signal outputted from a second light detector or an electrical signal correlated to its electrical signal, which precede a difference value calculation portion. The difference value calculation portion calculates a difference value between an electrical signal which passes through the first low-pass cutting portion and an electrical signal which passes through the second low-pass cutting portion.
REFERENCES:
patent: 4659937 (1987-04-01), Cielo et al.
patent: 6613334 (2003-09-01), Yoshida et al.
patent: 09-304288 (1997-11-01), None
patent: 11-248637 (1999-09-01), None
Suzuki Ushio
Tange Hiroshi
Blank Rome LLP
Fuji Opto Co., Ltd.
JATCO Ltd.
Pyo Kevin
LandOfFree
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